A 20 keV electron is brought to rest by colliding twice with target nuclei as in Fig. 40-14. (Assume the nuclei remain stationary.) The wavelength associated with the photon emitted in the second collision is 130 pm greater than that associated with the photon emitted in the first collision.
(a) What is the kinetic energy of the electron after the first collision? What are?
(b) The wavelength λ1
(c) The energy E1 associated with the first photon? What are?
(d) λ2
(e) E2 associated with the second photon?

Transcribed Image Text:

Ko-AK Target atom Incident electron X-ray photon